Hammer-press.



W. J. HAGMAN.

HAMMER PRESS.

APPLICATION FILED JULY 23, 1912.

1,039,277. I Patented Sept. 24, 1912.

LUz'ZZiam J. Hangman/t \vgtnessesz Inventor 12,0 1' wwwb sf/L m. 1511M. "1 2 I Attorney v UNITED STATES PATENT OFFICE.

WILLIAM J. HAGMAN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO NILES- BEMENT-POND COMPANY, OF JERSEY CITY, NEW JERSEY.

HAMMER-PRESS.

Specification of Letters Patent.

Patented Sept. 24, 1912.

Application filed July 23, 1912. Serial No. 711,078.

To all whom it may couccm Be it known that I, WILLIAM J. I'IAGMAN, a citizen of the United States, residing at Philadelphia, Philadelphia county, Pennsylvania, have invented certain new and useful Improvements in Hammer-Presses, of which the following is a specification.

In the ordinary steam hammer the tendency of the impactive blows of the hammer upon the anvil would be to crystallize and break the hammer-frame, and to avoid this it has been customary to support the anvil independently of the support of the hammer-frame so that the hammer-blows, instead of transmitting their shocks to the hammer-frame, are independently met by the anvil.

The ordinary steam hammer does its work entirely by impactive blows the weight of and the downward pressure upon the hammer being insuflicient to produce any serious useful squeezing effect. In the hydraulic press, when employed for forging purposes, the effect is entirely that of squeezing. A modern type of forging machine combines an impactive stroke hammer, operated by steam or compressed air, in conjunction with a hydraulic press to act on the hammer and bring about the squeezing effect.

While it is feasible to give to the anvil of a steam hammer a support independent of the frame, such would not be the case with a hammer provided with a hydraulic press for the tendency would be to turn the structure over. It is therefore essential that the frame itself be arranged to meet the strains of the press.

My present invention comprehends an anvil arrangement whereby the hammerframe is substantially free from destructive shocks due to impacts and is at the same time enabled to resist within itself the strains due to the hydraulic press action.

My invention will be readily understood from the following description taken in connection with the accompanying drawing which is a side elevation of the base portion and anvil of a hammer-press embodying an exemplification of my invention.

In the drawing :1, indicates a portion of the frame of a hammer-press; 2, the base portion thereof provided with the usual vertical aperture through which the anvil extends downward; 3, the base of the hammerframe adapted to be secured upon the hammer-foundation; 4, the anvil presenting its top above the base of the frame, the anvil projecting down freely through the aperture in the base of the frame; 5, the usual dieblock keyed into the top of the anvil; 6, an annular flange projecting out from the top of the anvil over the surrounding base-portion of the hammer-frame; and 7, a cushion interposed between this flange and the hammer-base and formed of a semi-elastic material such, for instance as leather, wood, or vulcanized fiber.

WVhen the anvil is subjected to the blows of the machine acting as a steam hammer, the cushion yields suilicicntly to protect the hammer-frame from shocks incident to the blows. \Vhen the anvil is subjected to dead pressure, as when the machine is being used as a forging press, the strains are transmitted through the cushion to the base of the hammer-frame, whereby the hammerframe, as a self-contained structure, meets these pressing strains.

I claim A hammer-press comprising, a hammerframe base-portion adapted for support upon a foundation and provided with an anvil-receiving aperture, an anvil disposed freely within such aperture, an annular flange formed upon the top of the anvil and over the surrounding portion of the hammer-frame base-portion, and a cushion interposed between said flange and hammerframe base-portion, combined substantially as set forth.

' WILLIAM J. HAGMAN. Witnesses:

WM. LOUGHRIDGE, R. RAYMOND PORTER.

.Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

